<template>
  <div class="wrapper" ref="wrapper">
      <div class="content">
          <slot>

          </slot>
      </div>

  </div>
</template>

<script>
import BScroll from 'better-scroll'
export default {
    name:'Scroll',
    props:{
       probeType:{
           type:Number,
           default:1
       },
       pullUpLoad:{
           type:Boolean,
           default:false
       }
    },
    data(){
        return {
            scroll:null
        }
    },
    mounted(){
        //1创建BScroll对象
        this.scroll = new BScroll(this.$refs.wrapper,{
            click:true,
            probeType:this.probeType,
            pullUpLoad:this.pullUpLoad
        })
        //2.监听滚动的位置
        this.scroll.on('scroll',(position) => {
            // console.log(position);
            this.$emit('scroll',position)
        })
        //3.监听上拉事件
        // this.scroll.on('pullingUp',()=>{
        //    this.$emit('pullingUp')
        // })
        //3.监听scroll滚动到底部
        if(this.pullUpLoad){
            this.scroll.on('pullingUp',()=>{
                // console.log('到底部了');
                this.$emit('pullingUp')
            })
        }

    },
    methods:{
        scrollTo(x,y,time=300){
            this.scroll.scrollTo(x,y,time)
        },
       
        refresh(){
            this.scroll.refresh()
        },  
        finishPullUp(){
            this.scroll && this.scroll.finishPullUp()
        },
        getScrollY(){
            return this.scroll ? this.scroll.y : 0
        }
    }
}
</script>

<style scopde>

</style>